Why Are Some Street Lights Turning Purple?
Purple street lights result from LED phosphor layer degradation caused by manufacturing defects, environmental stress, and material aging. This color shift reduces visibility, narrows the light spectrum, lowers perceived brightness, and creates safety and liability risks for drivers, pedestrians, and facility managers. Effective solutions include prompt replacement of defective lights, regular inspections, and using high-quality, durable LEDs with advanced phosphor technology for long-lasting illumination.